Quick Takeaways
- MNKD - MANNKIND CORP has 20 insiders with reported activity on this page.
- Net insider value flow over the last year: -$3,629,063.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 20 Insiders of MANNKIND CORP
- Symbol
- MNKD on Nasdaq
- Location
- Danbury, CT
What Changed
- Buy value: $259,000; sell value: $3,888,063.
- Net share flow: -650,067.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$3,629,063.
Buys
$259,000
Shares: 100,000
Insiders: 1
Sells
$3,888,063
Shares: 750,067
Insiders: 5
Net
-$3,629,063
Shares: -650,067
Insiders: -4
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 100,000 | 0 | $259,000 | $0 | +$259,000 |
| 3-6 | 0 | 429,403 | $0 | $2,464,423 | -$2,464,423 |
| 6-9 | 0 | 129,833 | $0 | $577,342 | -$577,342 |
| 9-12 | 0 | 190,831 | $0 | $846,298 | -$846,298 |
MANNKIND CORP executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael Castagna | Chief Executive Officer, Director | $6,680,924 | -$990,292 | -13% | Mixed | 23 Mar 2026 |
| David Thomson | EVP Genl Counsel & Secretary | $4,688,374 | -$1,013,490 | -18% | Filing P/S | 23 Mar 2026 |
| Steven B. Binder | Director | $3,272,201 | -$982,305 | -23% | Filing P/S | 26 Feb 2026 |
| Stuart A. Tross | Chief People & Workpl Officer | $3,270,971 | -$548,528 | -14% | Mixed | 23 Mar 2026 |
| Alejandro Galindo | EVP Endocrine Business Unit | $3,108,300 | Mixed | 22 Aug 2022 | ||
| Joseph Kocinsky | Chief Technology Officer | $2,980,932 | Mixed | 27 Aug 2022 | ||
| Sanjay R. Singh | EVP Technical Operations | $2,289,711 | -$94,448 | -4% | Filing P/S | 23 Mar 2026 |
| Burkhard R. Blank | EVP Chief Medical Officer | $1,774,045 | Mixed | 15 Jul 2025 | ||
| Ajay Ahuja | Chief Medical Officer | $1,708,734 | Mixed | 23 Mar 2026 | ||
| Dominic Marasco | Pres, Endocrine Business Unit | $1,520,436 | Mixed | 23 Jun 2025 | ||
| Lauren M. Sabella | EVP Operations | $1,346,887 | Mixed | 15 Jul 2025 | ||
| Christopher B. Prentiss | Chief Financial Officer | $1,140,752 | Mixed | 23 Mar 2026 | ||
| Anthony C. Hooper | Director | $772,220 | Mixed | 01 Mar 2026 | ||
| James Samuel Shannon | Director | $211,356 | Mixed | 01 Mar 2026 | ||
| Jennifer Grancio | Director | Mixed | 14 May 2025 | |||
| Michael A. Friedman | Director | Mixed | 14 May 2025 | |||
| Ronald J. Consiglio | Director | Mixed | 14 May 2025 | |||
| Kent Kresa | Director | Mixed | 15 May 2024 | |||
| Sabrina Kay | Director | Mixed | 14 May 2025 | |||
| Christine Mundkur | Director | Mixed | 14 May 2025 |
Top shareholders of MANNKIND CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
|
Company |
—
class O/S missing
|
28,949,515
|
$164,143,750 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
—
class O/S missing
|
17,880,873
|
$101,384,549 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
—
class O/S missing
|
14,623,269
|
$82,913,935 | — | 31 Dec 2025 | |
| Rubric Capital Management LP |
13F
|
Company |
—
class O/S missing
|
7,476,495
|
$42,391,727 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
—
class O/S missing
|
7,374,138
|
$41,819,116 | — | 31 Dec 2025 | |
| Nitorum Capital, L.P. |
13F
|
Company |
—
class O/S missing
|
5,325,823
|
$30,197,416 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
—
class O/S missing
|
5,103,097
|
$28,934,560 | — | 31 Dec 2025 | |
| Avoro Capital Advisors LLC |
13F
|
Company |
—
class O/S missing
|
4,444,444
|
$25,199,997 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
—
class O/S missing
|
4,443,922
|
$25,197,040 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
—
class O/S missing
|
4,443,603
|
$25,195,064 | — | 31 Dec 2025 | |
| Frazier Life Sciences Management, L.P. |
13F
|
Company |
—
class O/S missing
|
4,225,000
|
$23,955,750 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
—
class O/S missing
|
3,577,534
|
$20,284,620 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
—
class O/S missing
|
3,571,955
|
$20,252,985 | — | 31 Dec 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
—
class O/S missing
|
3,305,012
|
$18,739,418 | — | 31 Dec 2025 | |
| 180 WEALTH ADVISORS, LLC |
13F
|
Company |
—
class O/S missing
|
2,958,944
|
$16,777,214 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
—
class O/S missing
|
2,629,888
|
$14,911,465 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
—
class O/S missing
|
2,564,526
|
$14,540,862 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
—
class O/S missing
|
2,362,221
|
$13,393,792 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
—
class O/S missing
|
2,162,242
|
$12,259,912 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
—
class O/S missing
|
1,921,967
|
$10,897,552 | — | 31 Dec 2025 | |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
|
Company |
—
class O/S missing
|
1,894,000
|
$10,738,980 | — | 31 Dec 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
—
class O/S missing
|
1,882,234
|
$10,672,267 | — | 31 Dec 2025 | |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
—
class O/S missing
|
1,861,046
|
$10,552,131 | — | 31 Dec 2025 | |
| Eversept Partners, LP |
13F
|
Company |
—
class O/S missing
|
1,852,563
|
$10,504,032 | — | 31 Dec 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
—
class O/S missing
|
1,831,136
|
$10,382,541 | — | 31 Dec 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
—
class O/S missing
|
1,757,487
|
$9,964,951 | — | 31 Dec 2025 | |
| EcoR1 Capital, LLC |
13F
|
Company |
—
class O/S missing
|
1,660,000
|
$9,412,200 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
—
class O/S missing
|
1,580,796
|
$8,963,113 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
—
class O/S missing
|
1,248,545
|
$7,079,250 | — | 31 Dec 2025 | |
| APIS CAPITAL ADVISORS, LLC |
13F
|
Company |
—
class O/S missing
|
1,200,100
|
$6,804,567 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
—
class O/S missing
|
1,188,438
|
$6,738,443 | — | 31 Dec 2025 | |
| Michael Castagna |
3/4/5
|
Chief Executive Officer, Director |
—
mixed-class rows
|
4,155,411
mixed-class rows
|
$6,680,924 | -$990,292 | 23 Mar 2026 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
—
class O/S missing
|
1,089,059
|
$6,174,964 | — | 31 Dec 2025 | |
| AXIOM INVESTORS LLC /DE |
13F
|
Company |
—
class O/S missing
|
1,037,704
|
$5,883,782 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
—
class O/S missing
|
1,025,437
|
$5,814,227 | — | 31 Dec 2025 | |
| DELTEC ASSET MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
974,700
|
$5,526,549 | — | 31 Dec 2025 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
—
class O/S missing
|
894,204
|
$5,070,137 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
—
class O/S missing
|
873,493
|
$4,952,703 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
—
class O/S missing
|
843,026
|
$4,779,958 | — | 31 Dec 2025 | |
| David Thomson |
3/4/5
|
EVP Genl Counsel & Secretary |
—
mixed-class rows
|
1,279,719
mixed-class rows
|
$4,688,374 | -$1,013,490 | 23 Mar 2026 | |
| SCHRODER INVESTMENT MANAGEMENT GROUP |
13F
|
Company |
—
class O/S missing
|
827,853
|
$4,685,648 | — | 31 Dec 2025 | |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND |
13F
|
Company |
—
class O/S missing
|
707,140
|
$4,009,484 | — | 31 Dec 2025 | |
| SCOPIA CAPITAL MANAGEMENT LP |
13F
|
Company |
—
class O/S missing
|
694,961
|
$3,940,429 | — | 31 Dec 2025 | |
| Apollo Management Holdings, L.P. |
13F
|
Company |
—
class O/S missing
|
664,113
|
$3,765,521 | — | 31 Dec 2025 | |
| Parkman Healthcare Partners LLC |
13F
|
Company |
—
class O/S missing
|
640,356
|
$3,630,819 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
639,249
|
$3,624,541 | — | 31 Dec 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
—
class O/S missing
|
587,186
|
$3,329,344 | — | 31 Dec 2025 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
—
class O/S missing
|
578,402
|
$3,279,535 | — | 31 Dec 2025 | |
| Steven B. Binder |
3/4/5
|
Director |
—
mixed-class rows
|
928,387
mixed-class rows
|
$3,272,201 | -$982,305 | 26 Feb 2026 | |
| Stuart A. Tross |
3/4/5
|
Chief People & Workpl Officer |
—
mixed-class rows
|
1,438,297
mixed-class rows
|
$3,270,971 | -$548,528 | 23 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for MANNKIND CORP
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Christopher B. Prentiss | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| Christopher B. Prentiss | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| Michael Castagna | MNKD | Employee Stock Option (right to buy) | Award | 782,000 | 782,000 | 23 Mar 2026 | Direct | |||
| Michael Castagna | MNKD | Performance Restricted Stock Unit | Award | 796,000 | 796,000 | 23 Mar 2026 | Direct | |||
| Sanjay R. Singh | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| Sanjay R. Singh | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| Ajay Ahuja | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| Ajay Ahuja | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| Stuart A. Tross | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| Stuart A. Tross | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| David Thomson | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| David Thomson | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Purchase | 4.04% | $259,000 | $2.59 | 100,000 | 2,575,911 | 10 Mar 2026 | Direct |
| James Samuel Shannon | MNKD | Common Stock, $0.01 Par Value | Award | 22.8% | 12,000 | 64,635 | 01 Mar 2026 | Direct | ||
| Anthony C. Hooper | MNKD | Common Stock, $0.01 Par Value | Award | 17.4% | 35,000 | 236,153 | 01 Mar 2026 | Direct | ||
| Christopher B. Prentiss | MNKD | Common Stock, $0.01 Par Value | Award | 1.45% | 5,000 | 348,854 | 01 Mar 2026 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Award | 0.62% | 15,290 | 2,475,911 | 01 Mar 2026 | Direct | ||
| Stuart A. Tross | MNKD | Common Stock, $0.01 Par Value | Award | 1.55% | 15,290 | 1,000,297 | 01 Mar 2026 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (right to buy) | Award | 145,275 | 57,750 | 26 Feb 2026 | Direct | |||
| Steven B. Binder | MNKD | Employee Stock Option (right to buy) | Award | 45,025 | 45,025 | 26 Feb 2026 | Direct | |||
| David Thomson | MNKD | Employee Stock Option (right to buy) | Award | 57,525 | 37,525 | 26 Feb 2026 | Direct | |||
| Stuart A. Tross | MNKD | Employee Stock Option (right to buy) | Award | 48,143 | 28,143 | 26 Feb 2026 | Direct | |||
| Stuart A. Tross | MNKD | Common Stock, $0.01 Par Value | Sale | -4.55% | $297,548 | $6.33 | -47,006 | 985,007 | 08 Jan 2026 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Gift | -1.76% | -44,171 | 2,460,621 | 24 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Sale | -2.56% | $395,482 | $6.01 | -65,804 | 2,504,792 | 17 Dec 2025 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Options Exercise | 2.63% | 65,804 | 2,570,596 | 17 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -65,804 | 0 | 17 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Sale | -0.84% | $127,860 | $6.00 | -21,310 | 2,504,792 | 16 Dec 2025 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Options Exercise | 0.85% | 21,310 | 2,526,102 | 16 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (Right to Buy) | Options Exercise | -57.4% | -21,310 | 15,804 | 16 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Sale | -0.82% | $124,836 | $6.00 | -20,806 | 2,504,792 | 12 Dec 2025 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Options Exercise | 0.83% | 20,806 | 2,525,598 | 12 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -20,806 | 0 | 12 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Sale | -4.13% | $601,114 | $5.57 | -107,920 | 2,504,792 | 02 Dec 2025 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Options Exercise | 4.31% | 107,920 | 2,612,712 | 02 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -107,920 | 0 | 02 Dec 2025 | Direct | ||
| David Thomson | MNKD | Common Stock, $0.01 Par Value | Sale | -14.9% | $823,135 | $5.57 | -147,780 | 841,719 | 02 Dec 2025 | Direct |
| David Thomson | MNKD | Common Stock, $0.01 Par Value | Options Exercise | 17.6% | 147,780 | 989,499 | 02 Dec 2025 | Direct | ||
| David Thomson | MNKD | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -147,780 | 0 | 02 Dec 2025 | Direct | ||
| Sanjay R. Singh | MNKD | Common Stock, $0.01 Par Value | Sale | -3.96% | $94,448 | $5.03 | -18,777 | 455,211 | 14 Nov 2025 | Direct |
| Ajay Ahuja | MNKD | Common Stock, $0.01 Par Value | Award | 318,200 | 318,200 | 11 Nov 2025 | Direct | |||
| Sanjay R. Singh | MNKD | Common Stock, $0.01 Par Value | Tax liability | -3.48% | -17,071 | 473,988 | 31 Oct 2025 | Direct | ||
| Stuart A. Tross | MNKD | Common Stock, $0.01 Par Value | Sale | -4.36% | $250,980 | $5.34 | -47,000 | 1,032,013 | 16 Sep 2025 | Direct |
| Stuart A. Tross | MNKD | Common Stock, $0.01 Par Value | Award | 1.2% | 12,755 | 1,079,013 | 05 Aug 2025 | Direct | ||
| Steven B. Binder | MNKD | Common Stock, $0.01 Par Value | Sale | -8.32% | $296,946 | $3.94 | -75,367 | 830,508 | 16 Jul 2025 | Direct |
| David Thomson | MNKD | Common Stock, $0.01 Par Value | Sale | -0.88% | $29,416 | $3.94 | -7,466 | 841,719 | 16 Jul 2025 | Direct |
| Steven B. Binder | MNKD | Common Stock, $0.01 Par Value | Tax liability | -2.09% | -19,383 | 905,875 | 15 Jul 2025 | Direct | ||
| Burkhard R. Blank | MNKD | Common Stock, $0.01 Par Value | Tax liability | -2.03% | -9,556 | 460,791 | 15 Jul 2025 | Direct | ||
| Sanjay R. Singh | MNKD | Common Stock, $0.01 Par Value | Tax liability | -3.05% | -15,450 | 491,059 | 15 Jul 2025 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Tax liability | -4.25% | -111,275 | 2,504,792 | 15 Jul 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.